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Individual Calculations September 2023 |
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| Kalerwa, Edwin M Total change: -25.40 | |   |
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| 2023 British Championship: Over 50 Championship | Leicester | ENG | 2023-07-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1861 | 1694 | 1.50 | 5 | -0.17 | 20 | -3.40 | |
|  Mason, Donald J | | | 2041 | ENG | 0.00 | 1 | -0.11 | 20 | -2.20 | |  Molyneux, John | | | 2230 | ENG | 0.00 | 1 | -0.03 | 20 | -0.60 | | | Drugan, Mark A | | | 1692 | ENG | 0.50 | 1 | 0.00 | 20 | 0.00 | | | Kirby, Peter J. | c | | 1985 | GCI | 0.00 | 1 | -0.15 | 20 | -3.00 | | | Strugar, Ioan-Euzeb | | | 1359 | ROU | 1.00 | 1 | 0.12 | 20 | 2.40 | |
Rc - average rating of rated opponents, Ro - rating of a player in a tournament, Rp - rating performance of an unrated player, W - points won in a tournament against rated opponents, N - total number of games against rated opponents, Change - change used for calculation according to formula, K - development coefficient, Kchg - rating change of a player calculated as (K * change) | | | | Northumbria Masters Challengers | Newcastle upon Tyne | ENG | 2023-08-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1790 | 1694 | 1.50 | 7 | -1.10 | 20 | -22.00 | |
| | Costello, Colin A | | | 1823 | ENG | 0.00 | 1 | -0.33 | 20 | -6.60 | | | Fallowfield, Nicholas | | | 1875 | ENG | 0.50 | 1 | 0.24 | 20 | 4.80 | | | Izod, Chris | | | 1907 | ENG | 0.00 | 1 | -0.23 | 20 | -4.60 | | | Clarke, Niall | | | 1751 | ENG | 1.00 | 1 | 0.58 | 20 | 11.60 | | | Hasson, Peter | | | 1986 | ENG | 0.00 | 1 | -0.15 | 20 | -3.00 | | | Trevelyan, Sam | | | 1381 | ENG | 0.00 | 1 | -0.86 | 20 | -17.20 | | | Day, Jonathan A | | | 1806 | ENG | 0.00 | 1 | -0.35 | 20 | -7.00 | |
Rc - average rating of rated opponents, Ro - rating of a player in a tournament, Rp - rating performance of an unrated player, W - points won in a tournament against rated opponents, N - total number of games against rated opponents, Change - change used for calculation according to formula, K - development coefficient, Kchg - rating change of a player calculated as (K * change) | | |
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